Testing for a file attachment

I am using check box to trigger a notification and I have linked this check box to the test if the file has been attached. I used "" as the value to test if the attachment is available. But it does not quite work. So the question is if there is indeed an attachment, what does that constitute in terms of testing the field?

I have a similar request, but I'm not following the above steps to get my use case to work and was wondering if you could help me. I want a form rule to show (and require) a checkbox field if a file has been attached. I created a formula checkbox field called Photo Attest with the following formula If(ToText([FileUpload]) <>"", True, False) How do I create the dynamic form rule? I've tried but it won't let me pick the File Upload field if I chose the Photo Attest field as the "when" condition. I'm just not getting the logic and the syntax of how this all comes together in dynamic form rules...I so wish they'd add if/then statements and multiple conditions in Dynamic Forms. Thanks!

HI Mark, this worked great for me as well. I have taken the process a step further, whereby we write a date/time when this upload took place. The only challenge i am experiencing, is when the attachment is deleted, it doesn't take the previous date/time away. I tried doing it with another form rule, but its not working...what am I doing wrong?

Is that field on the form? Quick Base is a bit lazy and does not recalculate Formula fields if they are not in the form. Try adding that field to the form. If that solves the problem you can still hide that field or a section called
Required for Form Rules

With a form rule that always hides that section, like some data entry field not equal 999999999